Emanuel and Chico before the debate

Chicago mayoral candidates Rahm Emanuel (left) and Gery Chico share a short conversation just before the start of a debate at WGN-TV in Chicago. The debate was moderated by WGN-TV news anchor Micah Materre and Chicago Tribune editorial page editor Bruce Dold.

Chicago mayoral candidates Rahm Emanuel (left) and Gery Chico share a short conversation just before the start of a debate at WGN-TV in Chicago. The debate was moderated by WGN-TV news anchor Micah Materre and Chicago Tribune editorial page editor Bruce Dold. (Chris Sweda, Chicago Tribune)

Chicago mayoral candidates Rahm Emanuel (left) and Gery Chico share a short conversation just before the start of a debate at WGN-TV in Chicago. The debate was moderated by WGN-TV news anchor Micah Materre and Chicago Tribune editorial page editor Bruce Dold.